My Willys 3A and 3B Community

3A, 3B, DJ Technical Knowledge Base => "Original"-- Technical Questions, Answers, Observations => Topic started by: athawk11 on February 02, 2016, 07:34:42 PM

Title: Odd Device on Firewall
Post by: athawk11 on February 02, 2016, 07:34:42 PM

Hi all,
A friend in Germany is restoring a 3A.   He sent me this photo...

(http://i1195.photobucket.com/albums/aa397/athawk11/853F7334-F710-4E0B-A101-E73D9C49E2C7_zpsjgaxvoyt.jpg)

It's mounted to his firewall.  I'm not sure what it is.  Maybe a resistor?  What do you all think?

Tim

Title: Re: Odd Device on Firewall
Post by: Cadwelder on February 02, 2016, 08:36:07 PM

Looks like a rheostat to me, a variable resistor. For what, I don't know.

http://www.galco.com/images/moreinfo/ohmite0318.jpg

Title: Re: Odd Device on Firewall
Post by: Bob W on February 02, 2016, 08:56:34 PM

Quote

Looks like a rheostat to me, a variable resistor.

X2

Title: Re: Odd Device on Firewall
Post by: 1955CJ-5 on February 02, 2016, 09:14:43 PM

I dunno...but it looks like maybe the center would turn as the coil heats up and then it acts as a switch of some sort....cooling fan????

I'd like to see the other side of it....

Title: Re: Odd Device on Firewall
Post by: johnrb3b on February 03, 2016, 01:44:51 PM

Definitely a rheostat.
It should have a cover over its innards and a knob on the shaft.
It's not wired to anything so it's anybody's guess what it was for.
Not original equipment.

Title: Re: Odd Device on Firewall
Post by: Lee on February 04, 2016, 01:25:44 PM

Possibly an early electric trailer brake controller, WW2 half tracks had a like resistor for this purpose.

Lee ;)